I know I'm the site's designated Xbox 360 fan but this link
Engadget is pretty cool. Someone with a lot of free time and a lot of
spare controlling devices actually put together a semi-working
prototype of the Revolution controller and tried playing Half-Life 2
with it. His results were mixed but he thinks there is a lot of
potential in the device (I'm thinking Nintendo will have controls that
allow you to adjust a dead zone for those with trembling hands).